Bumper for portable air conditioner

A bumper for a portable air conditioner, the bumper comprising:

• a first outer surface and a second outer surface connected to the first outer surface;
• an upper bumper and a lower bumper coupled to a lower side of the upper bumper,
• wherein the upper bumper comprises:
• a first upper body fixed to the first outer surface;
• and
• a second upper body connected to the first upper body and in contact with the second outer surface,
• wherein the lower bumper comprises:
• a first lower body fixed to the first outer surface and coupled to a lower end of the first upper body;
• and
• a second lower body connected to the first lower body, coupled to a lower end of the second upper body, and in contact with the second outer surface,
• wherein the upper bumper further comprises:
• a first upper coupling rib provided on a lower end of the first upper body;
• and a second upper coupling rib provided on a lower end of the second upper body;
• wherein the lower bumper further comprises:
• a first lower coupling rib provided on an upper end of the first lower body and coupled to the first upper coupling rib;
• and
• a second lower coupling rib provided on an upper end of the second lower body and coupled to the second upper coupling rib;
• wherein the first upper coupling rib includes a first upper interference surface facing a first direction away from the second outer surface, and the first lower coupling rib includes a first lower interference surface contacting the first upper interference surface;
• and
• wherein the second upper coupling rib includes a second upper interference surface facing a second direction opposite to the first direction, and the second lower coupling rib includes a second lower interference surface contacting the second upper interference surface,
• such that the first and second coupling ribs cooperatively engage to prevent relative sliding movement between the upper bumper and the lower bumper along the first outer surface and the second outer surface.